Wind-stacker.



Patented Oct. 28. I902. J. W. HEATON.

WIND STACKER. (Application filed. Jan. 3, 1902.

(No Model.)

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WITNESSES ATTORNEY.

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UNITED STATES PATENT EErcE.

JOHN W. IIEATON, OF INDIANAPOLIS, INDIANA, ASSIGNOR OF ONE-HALF TO ERWIN EUGENE HOLMES, OF INDIANAPOLIS, INDIANA.

WlND-STACKER.

SPECIFICATION forming part of Letters Patent No. 711,964, dated October 28, 1902.

Application filed January 3. 1902. Serial No. 88,340. (No model.)

To all whom, it may concern:

Be itknown that I, JOHN W. HEATON, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Wind-Stackers, of which the following is a specification.

This invention relates to improvements in pneumatic straw-stackers; and the object of the invention is to lessen the friction between the guiding mechanism and the straw, thereby lessening the power required to do the work, to prevent breaking and doubling up the straw by dispensing with the fan through which the straw has heretofore been made to pass, and to apply the carrying and expelling power at different stations along the line of discharge in order to economize in power.

My invention consists, primarily, in the introduction of compressed air into the discharge-tube.

The invention also consists of certain details of construction, such as will be hereinafter fully described, and pointed out in the claims.

I accomplish the objects of the invention by the mechanism illustrated in the accompanying drawings, in-which- Figure 1 isa perspective view of myinvention applied to a threshing-machine; Fig. 2, a detail, in under side View and partial section, of the outer end of a pneumatic threshing-machine chute; and Fig. 3, a side elevation of the same, showiug the outer end of tube in vertical section.

Like letters of reference indicate like parts throughout the several views of the drawings.

A represents a threshing-machine of any usual and well-known construction; B, a receiving-box for the straw coming from the machine, said box heretofore containing the fan, but not so in my construction, as the fan is wholly dispensed with.

O is the discharge tube or chute, having the usual vertical and horizontal adjustments. It is made in two telescoping sections 0 and 0 whereby the length of the chute may be increased or decreased.

D is the neck connecting the receiving-box with the inner end of the chute. Entering this neck from the bottom is the compressedair supply d, which is connected, by means of the pipe or hose d, with the compressed-air tank E. The pipe d has the cut-off cock d by which the air-supply from the tank may be turned on or off at will. Air is compressed into tank E by means of any suitable airpumpsuch, for example, as that shown at F of the drawings, in whichf is the air-cylinder and f the steam-cylinder, steam being supplied through the pipe f This air-compressing mechanism in practice may be attached to the engine usually employed for furnishing the power for operating a thresh ing-machine, or it may be placed upon the threshing-machine. Likewise the air-tank E may, for convenience, be permanently attached to the threshing-machine, or ppssibly to the threshing-engine, it being clearly understood that the particular locations are not essential features of my invention. Air under pressure being admitted through pipe d from tank E to neck D, the straw coming into the zone of its influence upon entering box B is carried up and out through the chute C. To facilitate this discharge, the inner surface of the chute is covered with a smooth enamel, which will cause the straw to slide freely along the said inner surface of said chute, and to assist the action of the discharge of the straw through the chute in .a still larger way I create a partial vacuum near the outer end of the tube 0 on the in- ,jector principle, by introducing air-supplies at diametrically opposite sides of the tube. The air from each inlet is discharged obliquely into the tube in a forward direction, as indicated by the darts in Fig. 2. Compressed air is supplied to these inlets through pipes g and g, laid-along the sides of the outer section C and preferably united on the under side of said pipe-section, and is connected by means of hose h with the compressed-air tank E. The pipes g and g might be connected with the compressed-air tank by means of separate hose for each; but by uniting the pipes and connecting with the air-tank through one hose the entangling number of the latter is lessened and an equal pressure of air to each pipe is insured. The vacuum produced by the meeting air-currents near the end of the chute draws the straw up through the tube, and the air taking hold of the straw near the end of the chute forcibly expels it therefrom. Steam under pressure may be used instead of air.

The invention is applicable to clover, pea, and other hullers, shredders, huskers, and the like, and I do not desire to limit'it to separators.

Having thus fully described my invention, what I claim as new, and wish to secure by Letters Patent of the United States, is

1. A threshing machine, a tubular discharge for straw therefrom, a compressed-air supply, and a pipe forming a communication between the discharge-tube and the air-supply, near the outlet from the tube to create an induced draft in the tube below the airinlet and a forced draft thence outwardly, substantially as described and shown.

2. The combination with the straw discharge tubes of a pneumatic stacker, of a pipe conveying compressed air or the like and discharging into said tubes near the outer end thereof through the sides thereof, substantially as described and shown.

3. The combination with the straw discharge tubes of a pneumatic stacker of a plurality of pipes discharging compressed air therein through the sides thereof, the inlets from at least two of said pipes being at diametrically opposite points near the outer end of the discharge-tubes, substantially as described and shown.

4. A tubular straw-discharge for threshingmachines having a pipe supplying compressed air discharging therein obliquely through the walls of said tubular discharge near the outlet of the tube, substantially as described and shown.

5. A chute for pneumatic stackers having a smooth enameled inner surface, as and for the purposes specified.

In witness whereof I have hereunto set my hand and seal, at Indianapolis, Indiana, this 24th day of December, A. D. 1901.

JOHN \V. HEATON. 

